Special Severe Duty Fan Clutch 92-99.5

Special 6.5TD fan Clutch as used in our ssd-002 Fan Upgrade kit

Special Severe Duty Fan Clutch 92-99.5
Model: ssd-2302	$179.99
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We have had many requests to sell just the special clutch used in our ssd-002 Fan Upgrade kit, so here it is!

This clutch engages earlier then stock and is a Heavy Duty Clutch MADE IN USA. It is designed to adapt the Duramax HD fan blade to a 92 thru 99-1/2 6.5 flange mount 4 bolt water pump shaft in C/K trucks and vans with serpentine belt CCW drive.

NOTE: THIS IS NOT A DIRECT REPLACEMENT FOR YOUR STOCK CLUTCH, IT IS FOR USE AS A REPLACEMENT FOR THE SPECIAL CLUTCH USED ON OUR SSD-002 FAN UPGRADE OR USE WITH A DURAMAX COMPOSITE FAN ONLY.

Our Special Thermal Fan Clutch...

Varies the fan speed with temperature of the air behind the radiator.
Engaged (high speed) operation provides maximum cooling.
Disengaged (low speed) operation provides fuel savings and noise reduction.
Greater life expectancy than a non-thermal clutch.
Briefly engaged at cold start-up.
Engages at about 30° lower than coolant temperature.

The air temperature coming through the radiator is sensed by the bi-metal thermal spring on the front of the thermal fan clutch. It expands and contracts with the change in air temperature operating a valve inside of the clutch. When cold, the silicone drive fluid is pumped from the working area to the reservoir. When hot, the valve opens allowing fluid from the reservoir to be transferred to the working area thereby increasing the fan speed. The clutch disengages as the air temperature decreases, closing the valve and allowing the silicone fluid to be pumped back into the reservoir.

A thermal fan clutch is engaged on a cold startup because the fluid drains into the working area when the engine is shut off. The fan clutch will slow down shortly after startup as a result of a pumping action produced by a difference in speed between the shaft and the body of the clutch.

Our Special Clutches are specifically designed to engage at lower temperatures than the original equipment parts that they replace.

Note: For use only on the application and vehicles listed above. Use on any other vehicle is at your own risk and any warranty will be void.